Modeling the Ethylene Sequence Length Distribution of Metallocene-Catalyzed Bimodal Polyethylene.

ABSTRACT: The structure of bimodal poly-(ethylene-hexene) is presented in terms of the ethylene sequence length distribution. This distribution is determined by applying statistical modeling to molecular weight and short chain branching distributions obtained from gel permeation chromatography (GPC). We found that the ethylene sequence length distribution of bimodal polyethylene can have features different from molecular weight and short chain branching distributions (SCBD) in terms of bimodality. Using the successive self-nucleation and annealing (SSA) method, we demonstrate the model's ability to elucidate experimental data related to the crystallization and structure of copolymers. It was found that the average lamellar thickness inferred from the SSA results correlated with the weight-averaged e

SUBMITTER: Sattari M 

PROVIDER: S-EPMC12509123 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature